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Richard Hughson

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Rodrigo Villar; Richard L Hughson
Lower limb vascular conductance and resting popliteal blood flow during head-up and head-down postural challenges.
Kathryn A Zuj; Richard L Hughson
Reply to pancheva, panchev, and pancheva.
Rodrigo Villar; Richard L Hughson
Reply to Pancheva, Panchev, and Pancheva.

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All Publications

2013: Rodrigo Villar; Richard L Hughson
Lower limb vascular conductance and resting popliteal blood flow during head-up and head-down postural challenges.
Clinical physiology and functional imaging 2013;33(3):186-91.
2013: Kathryn A Zuj; Richard L Hughson
Reply to pancheva, panchev, and pancheva.
Journal of applied physiology (Bethesda, Md. : 1985) 2013;114(8):1122.
2013: Rodrigo Villar; Richard L Hughson
Reply to Pancheva, Panchev, and Pancheva.
Journal of applied physiology (Bethesda, Md. : 1985) 2013;114(7):958.
2013: K A Zuj; J Kevin Shoemaker; Philippe Arbeille; Richard L Hughson
Cerebral critical closing pressure and CO2 responses during the progression toward syncope.
Journal of applied physiology (Bethesda, Md. : 1985) 2013;114(6):801-7.
2013: R Villar; Richard L Hughson
Repeatability of popliteal blood flow and lower limb vascular conductance at rest and exercise during body tilt using Doppler ultrasound.
Physiological measurement 2013;34(3):291-306.
2013: Rodrigo Villar; Richard L Hughson
Effect of altered arterial perfusion pressure on vascular conductance and muscle blood flow dynamic response during exercise in humans.
Journal of applied physiology (Bethesda, Md. : 1985) 2013;114(5):620-7.
2012: H Edgell; N Gagné; A Grinberg; K R Beavers; Richard L Hughson
Cardiovascular responses to lower body negative pressure before and after 4 h of head-down bed rest and seated control in men and women.
Journal of applied physiology (Bethesda, Md. : 1985) 2012;113(10):1604-12.
2012: K A Zuj; J Kevin Shoemaker; Philippe Arbeille; Marc-Antoine Custaud; H Edgell; Richard L Hughson
WISE 2005: responses of women to sublingual nitroglycerin before and after 56 days of 6° head-down bed rest.
Journal of applied physiology (Bethesda, Md. : 1985) 2012;113(3):434-41.
2012: K A Zuj; J Kevin Shoemaker; D Xu; Ph Arbeille; A P Blaber; D K Greaves; Richard L Hughson
Impaired cerebrovascular autoregulation and reduced CO₂ reactivity after long duration spaceflight.
American journal of physiology. Heart and circulatory physiology 2012;302(12):H2592-8.
2012: Katelyn S Fraser; Danielle K Greaves; Andrew P Blaber; J Kevin Shoemaker; Richard L Hughson
Heart rate and daily physical activity with long-duration habitation of the International Space Station.
Aviation, space, and environmental medicine 2012;83(6):577-84.
2012: H Edgell; A D Robertson; Richard L Hughson
Hemodynamics and brain blood flow during posture change in younger women and postmenopausal women compared with age-matched men.
Journal of applied physiology (Bethesda, Md. : 1985) 2012;112(9):1482-93.
2012: Richard L Hughson; P P Pereira-Junior; J Kevin Shoemaker; Philippe Arbeille; A P Blaber; D K Greaves; D Xu
Cardiovascular regulation during long-duration spaceflights to the International Space Station.
Journal of applied physiology (Bethesda, Md. : 1985) 2012;112(5):719-27.
2011: Kenneth Stephen Dyson; Nikhil Argarwal; Adil Bhatti; Steven G Denniss; Michael Williams-Bell; Richard L Hughson
Sustained hyperaemia stimulus is necessary to induce flow-mediated dilation of the human brachial artery.
Clinical physiology and functional imaging 2011;31(6):415-21.
2011: Richard L Hughson; Azmy Faisal
On the method of fitting cardiac output kinetics in severe exercise.
European journal of applied physiology 2011;111(7):1529-31.
2010: Azmy Faisal; Keith R Beavers; Richard L Hughson
O2 uptake and blood pressure regulation at the onset of exercise: interaction of circadian rhythm and priming exercise.
American journal of physiology. Heart and circulatory physiology 2010;299(6):H1832-42.
2010: Gary J Hodges; Louis Mattar; Kathryn A Zuj; Danielle K Greaves; Phillipe M Arbeille; Richard L Hughson; J Kevin Shoemaker
WISE-2005: prolongation of left ventricular pre-ejection period with 56 days head-down bed rest in women.
Experimental physiology 2010;95(11):1081-8.
2010: F Michael Williams-Bell; Geoff Boisseau; John McGill; Andrew Kostiuk; Richard L Hughson
Physiological responses and air consumption during simulated firefighting tasks in a subway system.
Applied physiology, nutrition, and metabolism = Physiologie appliquée, nutrition et métabolisme 2010;35(5):671-8.
2010: Azmy Faisal; Kenneth Stephen Dyson; Richard L Hughson
Prolonged ischaemia impairs muscle blood flow and oxygen uptake dynamics during subsequent heavy exercise.
The Journal of physiology 2010;588(Pt 19):3785-97.
2010: Kenneth Stephen Dyson; J Kevin Shoemaker; Philippe Arbeille; Richard L Hughson
Modelflow estimates of cardiac output compared with Doppler ultrasound during acute changes in vascular resistance in women.
Experimental physiology 2010;95(4):561-8.
2010: F Michael Williams-Bell; Geoff Boisseau; John McGill; Andrew Kostiuk; Richard L Hughson
Air management and physiological responses during simulated firefighting tasks in a high-rise structure.
Applied ergonomics 2010;41(2):251-9.
2009: Richard L Hughson
Oxygen uptake kinetics: historical perspective and future directions.
Applied physiology, nutrition, and metabolism = Physiologie appliquée, nutrition et métabolisme 2009;34(5):840-50.
2009: Richard L Hughson
Recent findings in cardiovascular physiology with space travel.
Respiratory physiology & neurobiology 2009;169 Suppl 1():S38-41.
2009: F Michael Williams-Bell; Rodrigo Villar; Michael T Sharratt; Richard L Hughson
Physiological demands of the firefighter Candidate Physical Ability Test.
Medicine and science in sports and exercise 2009;41(3):653-62.
2008: D G Harvey; J L Kraemer; M T Sharratt; Richard L Hughson
Respiratory gas exchange and physiological demands during a fire fighter evaluation circuit in men and women.
European journal of applied physiology 2008;103(1):89-98.
2008: Steven G Denniss; Thomas D Haffner; Jeffrey T Kroetsch; Sara R Davidson; James W E Rush; Richard L Hughson
Effect of short-term lycopene supplementation and postprandial dyslipidemia on plasma antioxidants and biomarkers of endothelial health in young, healthy individuals.
Vascular health and risk management 2008;4(1):213-22.
2007: Donald Watenpaugh; Deborah D O'Leary; Suzanne M Schneider; Stuart M C Lee; Brandon Macias; Kunihiko Tanaka; Richard L Hughson; Alan R Hargens
Lower body negative pressure exercise plus brief postexercise lower body negative pressure improve post-bed rest orthostatic tolerance.
Journal of applied physiology (Bethesda, Md. : 1985) 2007;103(6):1964-72.
2007: Heather Edgell; Kathryn A Zuj; Danielle K Greaves; J Kevin Shoemaker; Marc-Antoine Custaud; Pascaline Kerbeci; Philippe Arbeille; Richard L Hughson
WISE-2005: adrenergic responses of women following 56-days, 6 degrees head-down bed rest with or without exercise countermeasures.
American journal of physiology. Regulatory, integrative and comparative physiology 2007;293(6):R2343-52.
2007: Claire Demiot; Françoise Dignat-George; Jacques-Olivier Fortrat; Florence Sabatier; Claude Gharib; Irina Larina; Guillemette Gauquelin-Koch; Richard L Hughson; Marc-Antoine Custaud
WISE 2005: chronic bed rest impairs microcirculatory endothelium in women.
American journal of physiology. Heart and circulatory physiology 2007;293(5):H3159-64.
2007: N Gagné; D Fischer; D K Greaves; Richard L Hughson
WISE-2005: developing a non-invasive method to monitor cardiovascular deconditioning.
Journal of gravitational physiology : a journal of the International Society for Gravitational Physiology 2007;14(1):P137-8.
2007: K A Zuj; D K Greaves; Richard L Hughson
WISE-2005: reduced cerebral blood flow velocity with nitroglycerin--comparison with common carotid artery blood flow.
Journal of gravitational physiology : a journal of the International Society for Gravitational Physiology 2007;14(1):P65-6.
2007: K R Beavers; D K Greaves; Philippe Arbeille; Richard L Hughson
WISE-2005: orthostatic tolerance is poorly predicted by acute changes in cardiovascular variables.
Journal of gravitational physiology : a journal of the International Society for Gravitational Physiology 2007;14(1):P63-4.
2007: D K Greaves; Philippe Arbeille; Richard L Hughson
WISE 2005: altered cerebrovascular autoregulation after 60 day head-down bed rest.
Journal of gravitational physiology : a journal of the International Society for Gravitational Physiology 2007;14(1):P61-2.
2007: Kenneth Stephen Dyson; Philippe Arbeille; JK Shoemaker; M A Custaud; Richard L Hughson
WISE 2005: flow and nitroglycerin mediated dilation following 56 days of head down tilt bed rest with and without an exercise countermeasure.
Journal of gravitational physiology : a journal of the International Society for Gravitational Physiology 2007;14(1):P55-6.
2007: Richard L Hughson; JK Shoemaker; Philippe Arbeille; Kenneth Stephen Dyson; H Edgell; P Kerbeci; L Mattar; K Zuj; D K Greaves
WISE 2005: vascular responses to 60-day bed rest in women.
Journal of gravitational physiology : a journal of the International Society for Gravitational Physiology 2007;14(1):P53-4.
2007: J Kevin Shoemaker; L Mattar; Pascaline Kerbeci; S Trotter; Philippe Arbeille; Richard L Hughson
WISE 2005: stroke volume changes contribute to the pressor response during ischemic handgrip exercise in women.
Journal of applied physiology (Bethesda, Md. : 1985) 2007;103(1):228-33.
2007: Deborah D O'Leary; Richard L Hughson; J Kevin Shoemaker; D K Greaves; Donald Watenpaugh; Brandon Macias; Alan R Hargens
Heterogeneity of responses to orthostatic stress in homozygous twins.
Journal of applied physiology (Bethesda, Md. : 1985) 2007;102(1):249-54.
2006: Anne Pavy-Le Traon; Richard L Hughson; Claire Thalamas; Monique Galitsky; Nelly Fabre; Olivier Rascol; Jean-Michel Senard
Cerebral autoregulation is preserved in multiple system atrophy: A transcranial Doppler study.
Movement disorders : official journal of the Movement Disorder Society 2006;21(12):2122-6.
2006: Jorge Serrador; Richard L Hughson; J M Kowalchuk; Roberta L Bondar; Adrian W Gelb
Cerebral blood flow during orthostasis: role of arterial CO2.
American journal of physiology. Regulatory, integrative and comparative physiology 2006;290(4):R1087-93.
2006: Kenneth Stephen Dyson; J Kevin Shoemaker; Richard L Hughson
Effect of acute sympathetic nervous system activation on flow-mediated dilation of brachial artery.
American journal of physiology. Heart and circulatory physiology 2006;290(4):H1446-53.
2006: Jennifer L Durkin; A Harvey; Richard L Hughson; Jack P Callaghan
The effects of lumbar massage on muscle fatigue, muscle oxygenation, low back discomfort, and driver performance during prolonged driving.
Ergonomics 2006;49(1):28-44.
2005: Mikko P Tulppo; Heikki V Huikuri; Elli Tutungi; Derek S Kimmerly; Adrian W Gelb; Richard L Hughson; Timo H Mäkikallio; J Kevin Shoemaker
Feedback effects of circulating norepinephrine on sympathetic outflow in healthy subjects.
American journal of physiology. Heart and circulatory physiology 2005;288(2):H710-5.
2004: Deborah D O'Leary; J Kevin Shoemaker; Michael R Edwards; Richard L Hughson
Spontaneous beat-by-beat fluctuations of total peripheral and cerebrovascular resistance in response to tilt.
American journal of physiology. Regulatory, integrative and comparative physiology 2004;287(3):R670-9.
2004: Michael R Edwards; Deanna L Devitt; Richard L Hughson
Two-breath CO(2) test detects altered dynamic cerebrovascular autoregulation and CO(2) responsiveness with changes in arterial P(CO(2)).
American journal of physiology. Regulatory, integrative and comparative physiology 2004;287(3):R627-32.
2004: Richard L Hughson; JK Shoemaker; Philippe Arbeille; D D O'Leary; K S Pizzolitto; M D Hughes
Splanchnic and peripheral vascular resistance during lower body negative pressure (LBNP) and tilt.
Journal of gravitational physiology : a journal of the International Society for Gravitational Physiology 2004;11(2):P95-6.
2004: Richard L Hughson; JK Shoemaker
Vascular health in space.
Journal of gravitational physiology : a journal of the International Society for Gravitational Physiology 2004;11(2):P71-4.
2004: Andrew C Betik; Victoria B Luckham; Richard L Hughson
Flow-mediated dilation in human brachial artery after different circulatory occlusion conditions.
American journal of physiology. Heart and circulatory physiology 2004;286(1):H442-8.
2003: Derek S Kimmerly; Elli Tutungi; Timothy D Wilson; Jorge Serrador; Adrian W Gelb; Richard L Hughson; J Kevin Shoemaker
Circulating norepinephrine and cerebrovascular control in conscious humans.
Clinical physiology and functional imaging 2003;23(6):314-9.
2003: Richard L Hughson
Regulation of blood flow at the onset of exercise by feed forward and feedback mechanisms.
Canadian journal of applied physiology = Revue canadienne de physiologie appliquée 2003;28(5):774-87.
2003: S Deborah Lucy; John M Kowalchuk; Richard L Hughson; Donald H Paterson; David A Cunningham
Blunted cardiac autonomic responsiveness to hypoxemic stress in healthy older adults.
Canadian journal of applied physiology = Revue canadienne de physiologie appliquée 2003;28(4):518-35.
2003: Mikko P Tulppo; Arto J Hautala; Timo H Mäkikallio; Raija T Laukkanen; Seppo Nissilä; Richard L Hughson; Heikki V Huikuri
Effects of aerobic training on heart rate dynamics in sedentary subjects.
Journal of applied physiology (Bethesda, Md. : 1985) 2003;95(1):364-72.
2003: ME Tschakovsky; Richard L Hughson
Rapid blunting of sympathetic vasoconstriction in the human forearm at the onset of exercise.
Journal of applied physiology (Bethesda, Md. : 1985) 2003;94(5):1785-92.
2003: Michael R Edwards; Zigniew L Topor; Richard L Hughson
A new two-breath technique for extracting the cerebrovascular response to arterial carbon dioxide.
American journal of physiology. Regulatory, integrative and comparative physiology 2003;284(3):R853-9.
2002: Michael R Edwards; J Kevin Shoemaker; Richard L Hughson
Dynamic modulation of cerebrovascular resistance as an index of autoregulation under tilt and controlled PET(CO(2)).
American journal of physiology. Regulatory, integrative and comparative physiology 2002;283(3):R653-62.
2002: J Kevin Shoemaker; Richard L Hughson; L I Sinoway
Gender affects sympathetic neurovascular control during postural stress.
Journal of gravitational physiology : a journal of the International Society for Gravitational Physiology 2002;9(1):P83-4.
2002: Richard L Hughson; J Kevin Shoemaker; Z L Topor; M R Edwards; D D O'Leary; D C Lin; A W Gelb
Optimizing an LBNP protocol to test cardiopulmonary and arterial baroreflex control of vascular resistance.
Journal of gravitational physiology : a journal of the International Society for Gravitational Physiology 2002;9(1):P73-4.
2002: Michael R Edwards; Donny H Martin; Richard L Hughson
Cerebral hemodynamics and resistance exercise.
Medicine and science in sports and exercise 2002;34(7):1207-11.
2002: Dominique Sigaudo-Roussel; Marc-Antoine Custaud; Alain Maillet; Antonio Güell; Rustem Kaspranski; Richard L Hughson; Claude Gharib; Jacques-Olivier Fortrat
Heart rate variability after prolonged spaceflights.
European journal of applied physiology 2002;86(3):258-65.
2001: Andrew P Blaber; Roberta L Bondar; P Moradshahi; Jorge Serrador; Richard L Hughson
Inspiratory CO2 increases orthostatic tolerance during repeated tilt.
Aviation, space, and environmental medicine 2001;72(11):985-91.
2001: Stéphane Perrey; Andrew C Betik; Robin Candau; Jean-Denis Rouillon; Richard L Hughson
Comparison of oxygen uptake kinetics during concentric and eccentric cycle exercise.
Journal of applied physiology (Bethesda, Md. : 1985) 2001;91(5):2135-42.
2001: Stéphane Perrey; ME Tschakovsky; Richard L Hughson
Muscle chemoreflex elevates muscle blood flow and O2 uptake at exercise onset in nonischemic human forearm.
Journal of applied physiology (Bethesda, Md. : 1985) 2001;91(5):2010-6.
2001: Richard L Hughson; Michael R Edwards; D D O'Leary; J Kevin Shoemaker
Critical analysis of cerebrovascular autoregulation during repeated head-up tilt.
Stroke; a journal of cerebral circulation 2001;32(10):2403-8.
2001: Mikko P Tulppo; Timo H Mäkikallio; Tapio Seppänen; K Shoemaker; Elli Tutungi; Richard L Hughson; Heikki V Huikuri
Effects of pharmacological adrenergic and vagal modulation on fractal heart rate dynamics.
Clinical physiology (Oxford, England) 2001;21(5):515-23.
2001: J Kevin Shoemaker; Deborah D O'Leary; Richard L Hughson
PET(CO(2)) inversely affects MSNA response to orthostatic stress.
American journal of physiology. Heart and circulatory physiology 2001;281(3):H1040-6.
2001: Richard L Hughson; ME Tschakovsky; M E Houston
Regulation of oxygen consumption at the onset of exercise.
Exercise and sport sciences reviews 2001;29(3):129-33.
2001: Mireille van Beekvelt; J Kevin Shoemaker; ME Tschakovsky; Maria T E Hopman; Richard L Hughson
Blood flow and muscle oxygen uptake at the onset and end of moderate and heavy dynamic forearm exercise.
American journal of physiology. Regulatory, integrative and comparative physiology 2001;280(6):R1741-7.
2001: L Griffin; S Jayne Garland; T Ivanova; Richard L Hughson
Blood flow in the triceps brachii muscle in humans during sustained submaximal isometric contractions.
European journal of applied physiology 2001;84(5):432-7.
2001: MJ MacDonald; Howard J Green; HL Naylor; C Otto; Richard L Hughson
Reduced oxygen uptake during steady state exercise after 21-day mountain climbing expedition to 6,194 m.
Canadian journal of applied physiology = Revue canadienne de physiologie appliquée 2001;26(2):143-56.
2001: Mikko P Tulppo; Richard L Hughson; Timo H Mäkikallio; K E Juhani Airaksinen; Tapio Seppänen; H V Huikuri
Effects of exercise and passive head-up tilt on fractal and complexity properties of heart rate dynamics.
American journal of physiology. Heart and circulatory physiology 2001;280(3):H1081-7.
2001: K H Doyon; Stéphane Perrey; D Abe; Richard L Hughson
Field testing of VO2peak in cross-country skiers with portable breath-by-breath system.
Canadian journal of applied physiology = Revue canadienne de physiologie appliquée 2001;26(1):1-11.
2001: Jacques-Olivier Fortrat; D Sigaudo; Richard L Hughson; Alain Maillet; Y Yamamoto; Claude Gharib
Effect of prolonged head-down bed rest on complex cardiovascular dynamics.
Autonomic neuroscience : basic & clinical 2001;86(3):192-201.
2001: Michael R Edwards; DC Lin; Richard L Hughson
Modeling the interaction between perfusion pressure and CO2 on cerebral blood flow.
Advances in experimental medicine and biology 2001;499():285-90.
2001: MJ MacDonald; HL Naylor; ME Tschakovsky; Richard L Hughson
Peripheral circulatory factors limit rate of increase in muscle O(2) uptake at onset of heavy exercise.
Journal of applied physiology (Bethesda, Md. : 1985) 2001;90(1):83-9.
2000: Stuart M McGill; Richard L Hughson; KA Parks
Changes in lumbar lordosis modify the role of the extensor muscles.
Clinical biomechanics (Bristol, Avon) 2000;15(10):777-80.
2000: ME Tschakovsky; Richard L Hughson
Venous emptying mediates a transient vasodilation in the human forearm.
American journal of physiology. Heart and circulatory physiology 2000;279(3):H1007-14.
2000: Howard J Green; B Roy; S Grant; Richard L Hughson; Margaret Burnett; C Otto; A Pipe; D McKenzie; M Johnson
Increases in submaximal cycling efficiency mediated by altitude acclimatization.
Journal of applied physiology (Bethesda, Md. : 1985) 2000;89(3):1189-97.
2000: Richard L Hughson; D D O'Leary; Andrew C Betik; H Hebestreit
Kinetics of oxygen uptake at the onset of exercise near or above peak oxygen uptake.
Journal of applied physiology (Bethesda, Md. : 1985) 2000;88(5):1812-9.
2000: Stuart M McGill; Richard L Hughson; KA Parks
Lumbar erector spinae oxygenation during prolonged contractions: implications for prolonged work.
Ergonomics 2000;43(4):486-93.
2000: S Deborah Lucy; Richard L Hughson; John M Kowalchuk; Donald H Paterson; David A Cunningham
Body position and cardiac dynamic and chronotropic responses to steady-state isocapnic hypoxaemia in humans.
Experimental physiology 2000;85(2):227-37.
2000: M J MacDonald; Mark A Tarnopolsky; Richard L Hughson
Effect of hyperoxia and hypoxia on leg blood flow and pulmonary and leg oxygen uptake at the onset of kicking exercise.
Canadian journal of physiology and pharmacology 2000;78(1):67-74.
1999: Jorge Serrador; H C Finlayson; Richard L Hughson
Physical activity is a major contributor to the ultra low frequency components of heart rate variability.
Heart (British Cardiac Society) 1999;82(6):e9.
1999: D D O'Leary; DC Lin; Richard L Hughson
Determination of baroreflex gain using auto-regressive moving-average analysis during spontaneous breathing.
Clinical physiology (Oxford, England) 1999;19(5):369-77.
1999: ME Tschakovsky; Richard L Hughson
Ischemic muscle chemoreflex response elevates blood flow in nonischemic exercising human forearm muscle.
The American journal of physiology 1999;277(2 Pt 2):H635-42.
1999: J K Shoemaker; Richard L Hughson
Adaptation of blood flow during the rest to work transition in humans.
Medicine and science in sports and exercise 1999;31(7):1019-26.
1999: Richard L Hughson; ME Tschakovsky
Cardiovascular dynamics at the onset of exercise.
Medicine and science in sports and exercise 1999;31(7):1005-10.
1999: Audrey L Hicks; Stuart McGill; Richard L Hughson
Tissue oxygenation by near-infrared spectroscopy and muscle blood flow during isometric contractions of the forearm.
Canadian journal of applied physiology = Revue canadienne de physiologie appliquée 1999;24(3):216-30.
1999: HL Naylor; J Kevin Shoemaker; R W Brock; Richard L Hughson
Prostaglandin inhibition causes an increase in reactive hyperaemia after ischaemic exercise in human forearm.
Clinical physiology (Oxford, England) 1999;19(3):211-20.
1999: ME Tschakovsky; Richard L Hughson
Interaction of factors determining oxygen uptake at the onset of exercise.
Journal of applied physiology (Bethesda, Md. : 1985) 1999;86(4):1101-13.
1999: MJ MacDonald; Mark A Tarnopolsky; Howard J Green; Richard L Hughson
Comparison of femoral blood gases and muscle near-infrared spectroscopy at exercise onset in humans.
Journal of applied physiology (Bethesda, Md. : 1985) 1999;86(2):687-93.
1998: R W Brock; ME Tschakovsky; J Kevin Shoemaker; John R Halliwill; Michael J Joyner; Richard L Hughson
Effects of acetylcholine and nitric oxide on forearm blood flow at rest and after a single muscle contraction.
Journal of applied physiology (Bethesda, Md. : 1985) 1998;85(6):2249-54.
1998: MJ MacDonald; J Kevin Shoemaker; ME Tschakovsky; Richard L Hughson
Alveolar oxygen uptake and femoral artery blood flow dynamics in upright and supine leg exercise in humans.
Journal of applied physiology (Bethesda, Md. : 1985) 1998;85(5):1622-8.
1998: Richard L Hughson; MJ MacDonald; R C Ter-Vrugt; D R Northey
Central venous pressure-volume relationship with head-down tilt and LBNP.
Journal of gravitational physiology : a journal of the International Society for Gravitational Physiology 1998;5(1):P37-8.
1998: D Sigaudo; Jacques-Olivier Fortrat; Anne-Marie Allevard; Alain Maillet; Jean-Marie Cottet-Emard; A Vouillarmet; Richard L Hughson; Guillemette Gauquelin-Koch; Claude Gharib
Changes in the sympathetic nervous system induced by 42 days of head-down bed rest.
The American journal of physiology 1998;274(6 Pt 2):H1875-84.
1998: J Kevin Shoemaker; ME Tschakovsky; Richard L Hughson
Vasodilation contributes to the rapid hyperemia with rhythmic contractions in humans.
Canadian journal of physiology and pharmacology 1998;76(4):418-27.
1998: Jorge Serrador; Roberta L Bondar; Richard L Hughson
Ventilatory response to passive head up tilt.
Advances in experimental medicine and biology 1998;450():133-9.
1998: A P Traon; D Sigaudo; P Vasseur; Alain Maillet; Jacques-Olivier Fortrat; Richard L Hughson; Guillemette Gauquelin-Koch; Claude Gharib
Cardiovascular responses to orthostatic tests after a 42-day head-down bed-rest.
European journal of applied physiology and occupational physiology 1998;77(1-2):50-9.
1997: Richard L Hughson; M J MacDonald; J K Shoemaker; C Borkhoff
Alveolar oxygen uptake and blood flow dynamics in knee extension ergometry.
Methods of information in medicine 1997;36(4-5):364-7.
1997: J Kevin Shoemaker; John R Halliwill; Richard L Hughson; Michael J Joyner
Contributions of acetylcholine and nitric oxide to forearm blood flow at exercise onset and recovery.
The American journal of physiology 1997;273(5 Pt 2):H2388-95.
1997: M Macdonald; P K Pedersen; Richard L Hughson
Acceleration of VO2 kinetics in heavy submaximal exercise by hyperoxia and prior high-intensity exercise.
Journal of applied physiology (Bethesda, Md. : 1985) 1997;83(4):1318-25.
1997: J Kevin Shoemaker; M J MacDonald; Richard L Hughson
Time course of brachial artery diameter responses to rhythmic handgrip exercise in humans.
Cardiovascular research 1997;35(1):125-31.
1997: Anne Pavy-Le Traon; D Sigaudo; P Vasseur; Jacques-Olivier Fortrat; Antonio Güell; Richard L Hughson; Claude Gharib
Orthostatic tests after a 4-day confinement or simulated weightlessness.
Clinical physiology (Oxford, England) 1997;17(1):41-55.
1996: J Gregoire; S Tuck; Y Yamamoto; Richard L Hughson
Heart rate variability at rest and exercise: influence of age, gender, and physical training.
Canadian journal of applied physiology = Revue canadienne de physiologie appliquée 1996;21(6):455-70.
1996: Richard L Hughson; J Kevin Shoemaker; ME Tschakovsky; J M Kowalchuk
Dependence of muscle VO2 on blood flow dynamics at onset of forearm exercise.
Journal of applied physiology (Bethesda, Md. : 1985) 1996;81(4):1619-26.
1996: J Kevin Shoemaker; HL Naylor; Z I Pozeg; Richard L Hughson
Failure of prostaglandins to modulate the time course of blood flow during dynamic forearm exercise in humans.
Journal of applied physiology (Bethesda, Md. : 1985) 1996;81(4):1516-21.
1996: ME Tschakovsky; J Kevin Shoemaker; Richard L Hughson
Vasodilation and muscle pump contribution to immediate exercise hyperemia.
The American journal of physiology 1996;271(4 Pt 2):H1697-701.
1996: J Kevin Shoemaker; Z I Pozeg; Richard L Hughson
Forearm blood flow by Doppler ultrasound during test and exercise: tests of day-to-day repeatability.
Medicine and science in sports and exercise 1996;28(9):1144-9.
1996: A P Blaber; Richard L Hughson
Cardiorespiratory interactions during fixed-pace resistive breathing.
Journal of applied physiology (Bethesda, Md. : 1985) 1996;80(5):1618-26.
1996: J Kevin Shoemaker; Stuart M Phillips; Howard J Green; Richard L Hughson
Faster femoral artery blood velocity kinetics at the onset of exercise following short-term training.
Cardiovascular research 1996;31(2):278-86.
1996: D Sigaudo; Jacques-Olivier Fortrat; Alain Maillet; Anne-Marie Allevard; Anne Pavy-Le Traon; Richard L Hughson; A Guell; Claude Gharib; G Gauquelin
Comparison of a 4-day confinement and head-down tilt on endocrine response and cardiovascular variability in humans.
European journal of applied physiology and occupational physiology 1996;73(1-2):28-37.
1995: Stuart M Phillips; Howard J Green; MJ MacDonald; Richard L Hughson
Progressive effect of endurance training on VO2 kinetics at the onset of submaximal exercise.
Journal of applied physiology (Bethesda, Md. : 1985) 1995;79(6):1914-20.
1995: Richard L Hughson; Howard J Green; M T Sharratt
Gas exchange, blood lactate, and plasma catecholamines during incremental exercise in hypoxia and normoxia.
Journal of applied physiology (Bethesda, Md. : 1985) 1995;79(4):1134-41.
1995: ME Tschakovsky; J Kevin Shoemaker; Richard L Hughson
Beat-by-beat forearm blood flow with Doppler ultrasound and strain-gauge plethysmography.
Journal of applied physiology (Bethesda, Md. : 1985) 1995;79(3):713-9.
1995: Richard L Hughson; J M Kowalchuk
Kinetics of oxygen uptake for submaximal exercise in hyperoxia, normoxia, and hypoxia.
Canadian journal of applied physiology = Revue canadienne de physiologie appliquée 1995;20(2):198-210.
1995: Joel L Parlow; Jean-Paul Viale; Guy Annat; Richard L Hughson; Luc Quintin
Spontaneous cardiac baroreflex in humans. Comparison with drug-induced responses.
Hypertension 1995;25(5):1058-68.
1995: A P Blaber; Y Yamamoto; Richard L Hughson
Change in phase relationship between SBP and R-R interval during lower body negative pressure.
The American journal of physiology 1995;268(4 Pt 2):H1688-93.
1995: A P Blaber; Y Yamamoto; Richard L Hughson
Methodology of spontaneous baroreflex relationship assessed by surrogate data analysis.
The American journal of physiology 1995;268(4 Pt 2):H1682-7.
1995: Richard L Hughson; Alain Maillet; G Dureau; Y Yamamoto; C Gharib
Spectral analysis of blood pressure variability in heart transplant patients.
Hypertension 1995;25(4 Pt 1):643-50.
1995: Richard L Hughson; Alain Maillet; G Gauquelin; Philippe Arbeille; Y Yamamoto; Claude Gharib
Investigation of hormonal effects during 10-h head-down tilt on heart rate and blood pressure variability.
Journal of applied physiology (Bethesda, Md. : 1985) 1995;78(2):583-96.
1995: Richard L Hughson; J Kevin Shoemaker; ME Tschakovsky; D Corsale; B H Dietrich
Exercise with and without gravitational gradient: evaluation with the new random access mass spectrometer (RAMS).
Journal of gravitational physiology : a journal of the International Society for Gravitational Physiology 1995;2(1):P60-1.
1995: Richard L Hughson; Claude Gharib
Variability and cardiovascular homeostasis.
Journal of gravitational physiology : a journal of the International Society for Gravitational Physiology 1995;2(1):P123-6.
1995: Stephanie Tuck; Y Yamamoto; Richard L Hughson
The effects of hypoxia and hyperoxia on the 1/F nature of breath-by-breath ventilatory variability.
Advances in experimental medicine and biology 1995;393():297-302.
1995: Richard L Hughson; Y Yamamoto; Jacques-Olivier Fortrat
Is the pattern of breathing at rest chaotic? A test of the Lyapunov exponent.
Advances in experimental medicine and biology 1995;393():15-9.
1994: J Kevin Shoemaker; L Hodge; Richard L Hughson
Cardiorespiratory kinetics and femoral artery blood velocity during dynamic knee extension exercise.
Journal of applied physiology (Bethesda, Md. : 1985) 1994;77(6):2625-32.
1994: Richard L Hughson; Y Yamamoto; R E McCullough; JR Sutton; John T Reeves
Sympathetic and parasympathetic indicators of heart rate control at altitude studied by spectral analysis.
Journal of applied physiology (Bethesda, Md. : 1985) 1994;77(6):2537-42.
1994: G C Butler; Y Yamamoto; Richard L Hughson
Fractal nature of short-term systolic BP and HR variability during lower body negative pressure.
The American journal of physiology 1994;267(1 Pt 2):R26-33.
1994: Richard L Hughson; Alain Maillet; Claude Gharib; Jacques-Olivier Fortrat; Y Yamamoto; A Pavy-Letraon; D Rivière; Antonio Güell
Reduced spontaneous baroreflex response slope during lower body negative pressure after 28 days of head-down bed rest.
Journal of applied physiology (Bethesda, Md. : 1985) 1994;77(1):69-77.
1994: Alain Maillet; Jacques-Olivier Fortrat; D Sigaudo; Anne Pavy-Le Traon; Richard L Hughson; Claude Gharib; G Gauquelin
[Variability of the R-R interval and spontaneous baroreflex before and after exposure to weightlessness].
Presse médicale (Paris, France : 1983) 1994;23(22):1043.
1994: Richard L Hughson; Y Yamamoto; Alain Maillet; Jacques-Olivier Fortrat; Anne Pavy-Le Traon; G C Butler; Antonio Güell; Claude Gharib
Altered autonomic regulation of cardiac function during head-up tilt after 28-day head-down bed-rest with counter-measures.
Clinical physiology (Oxford, England) 1994;14(3):291-304.
1994: Richard L Hughson; Y Yamamoto; A P Blaber; Alain Maillet; Jacques-Olivier Fortrat; A Pavy-LeTraon; J F Marini; Antonio Güell; Claude Gharib
Effect of 28-day head-down bed rest with countermeasures on heart rate variability during LBNP.
Aviation, space, and environmental medicine 1994;65(4):293-300.
1994: Alain Maillet; Anne Pavy-Le Traon; Anne-Marie Allevard; D Sigaudo; Richard L Hughson; Claude Gharib; G Gauquelin
Hormone changes induced by 37.5-h head-down tilt (-6 degrees) in humans.
European journal of applied physiology and occupational physiology 1994;68(6):497-503.
1994: Y Yamamoto; Richard L Hughson
On the fractal nature of heart rate variability in humans: effects of data length and beta-adrenergic blockade.
The American journal of physiology 1994;266(1 Pt 2):R40-9.
1993: G C Butler; Y Yamamoto; Hua-Cheng Xing; D R Northey; Richard L Hughson
Heart rate variability and fractal dimension during orthostatic challenges.
Journal of applied physiology (Bethesda, Md. : 1985) 1993;75(6):2602-12.
1993: Richard L Hughson; J E Cochrane; G C Butler
Faster O2 uptake kinetics at onset of supine exercise with than without lower body negative pressure.
Journal of applied physiology (Bethesda, Md. : 1985) 1993;75(5):1962-7.
1993: Richard L Hughson; Y Yamamoto; G C Butler; A Guell; Claude Gharib
Evaluation of spontaneous baroreflex response after 28 days head down tilt bedrest.
Acta astronautica 1993;29(8):601-5.
1993: Y Yamamoto; Richard L Hughson; JR Sutton; C S Houston; A Cymerman; Ernest Fallen; M V Kamath
Operation Everest II: an indication of deterministic chaos in human heart rate variability at simulated extreme altitude.
Biological cybernetics 1993;69(3):205-12.
1992: J E Cochrane; Richard L Hughson
Computer simulation of O2 transport and utilization mechanisms at the onset of exercise.
Journal of applied physiology (Bethesda, Md. : 1985) 1992;73(6):2382-8.
1992: Y Yamamoto; Richard L Hughson; Y Nakamura
Autonomic nervous system responses to exercise in relation to ventilatory threshold.
Chest 1992;101(5 Suppl):206S-210S.
1992: G C Butler; Y Yamamoto; Hua-Cheng Xing; D R Northey; Richard L Hughson
Probing heart rate and blood pressure control mechanisms during graded levels of lower body negative pressure (LBNP).
Microgravity quarterly : MGQ 1992;2(2):133-40.
1992: Claude Gharib; Richard L Hughson
Fluid and electrolyte regulation in space.
Advances in space biology and medicine 1992;2():113-30.
1991: Hua-Cheng Xing; J E Cochrane; Y Yamamoto; Richard L Hughson
Frequency domain analysis of ventilation and gas exchange kinetics in hypoxic exercise.
Journal of applied physiology (Bethesda, Md. : 1985) 1991;71(6):2394-401.
1991: Richard L Hughson; L A Cuervo; Aftab E Patla; David A Winter; Hua-Cheng Xing; B H Dietrich; G D Swanson
Time domain analysis of oxygen uptake during pseudorandom binary sequence exercise tests.
Journal of applied physiology (Bethesda, Md. : 1985) 1991;71(4):1620-6.
1991: Y Yamamoto; Richard L Hughson
Coarse-graining spectral analysis: new method for studying heart rate variability.
Journal of applied physiology (Bethesda, Md. : 1985) 1991;71(3):1143-50.
1991: Y Yamamoto; Richard L Hughson; J C Peterson
Autonomic control of heart rate during exercise studied by heart rate variability spectral analysis.
Journal of applied physiology (Bethesda, Md. : 1985) 1991;71(3):1136-42.
1991: Richard L Hughson; D R Northey; Hua-Cheng Xing; B H Dietrich; J E Cochrane
Alignment of ventilation and gas fraction for breath-by-breath respiratory gas exchange calculations in exercise.
Computers and biomedical research, an international journal 1991;24(2):118-28.
1991: Richard L Hughson; J M Kowalchuk
Beta-blockade and oxygen delivery to muscle during exercise.
Canadian journal of physiology and pharmacology 1991;69(2):285-9.
1991: G C Butler; Hua-Cheng Xing; D R Northey; Richard L Hughson
Reduced orthostatic tolerance following 4 h head-down tilt.
European journal of applied physiology and occupational physiology 1991;62(1):26-30.
1991: Y Yamamoto; M Miyashita; Richard L Hughson; S Tamura; Minoru Shinohara; Y Mutoh
The ventilatory threshold gives maximal lactate steady state.
European journal of applied physiology and occupational physiology 1991;63(1):55-9.
1991: Richard L Hughson; Hua-Cheng Xing; C Borkhoff; G C Butler
Kinetics of ventilation and gas exchange during supine and upright cycle exercise.
European journal of applied physiology and occupational physiology 1991;63(3-4):300-7.
1990: K Yamaji; M Greenley; D R Northey; Richard L Hughson
Oxygen uptake and heart rate responses to treadmill and water running.
Canadian journal of sport sciences = Journal canadien des sciences du sport 1990;15(2):96-8.
1990: G C Butler; Hua-Cheng Xing; Richard L Hughson
Cardiovascular response to 4 hours of 6 degrees head-down tilt or of 30 degrees head-up tilt bed rest.
Aviation, space, and environmental medicine 1990;61(3):240-6.
1990: Richard L Hughson; Hua-Cheng Xing; G C Butler; D R Northey
Effect of hypoxia on VO2 kinetics during pseudorandom binary sequence exercise.
Aviation, space, and environmental medicine 1990;61(3):236-9.
1990: Richard L Hughson
Exploring cardiorespiratory control mechanisms through gas exchange dynamics.
Medicine and science in sports and exercise 1990;22(1):72-9.
1990: Richard L Hughson; Hua-Cheng Xing; C Borkhoff; G C Butler
Cardiorespiratory responses to maximal and submaximal exercise in supine and upright positions.
The Physiologist 1990;33(1 Suppl):S38-9.
1990: Richard L Hughson; David A Winter; Aftab E Patla; G D Swanson; L A Cuervo
Investigation of VO2 kinetics in humans with pseudorandom binary sequence work rate change.
Journal of applied physiology (Bethesda, Md. : 1985) 1990;68(2):796-801.
1990: J M Kowalchuk; Richard L Hughson
Effect of beta-adrenergic blockade on VO2 kinetics during pseudorandom binary sequence exercise.
European journal of applied physiology and occupational physiology 1990;60(5):365-9.
1990: J M Kowalchuk; C S Klein; Richard L Hughson
The effect of beta-adrenergic blockade on leg blood flow with repeated maximal contractions of the triceps surae muscle group in man.
European journal of applied physiology and occupational physiology 1990;60(5):360-4.
1989: P C Murphy; L A Cuervo; Richard L Hughson
A study of cardiorespiratory dynamics with step and ramp exercise tests in normoxia and hypoxia.
Cardiovascular research 1989;23(10):825-32.
1989: Philip Massarelli; Howard J Green; Richard L Hughson; M T Sharratt
Mechanical and metabolic alterations in rat diaphragm during electrical stimulation.
Journal of applied physiology (Bethesda, Md. : 1985) 1989;67(1):210-20.
1989: M E Campbell; Richard L Hughson; Howard J Green
Continuous increase in blood lactate concentration during different ramp exercise protocols.
Journal of applied physiology (Bethesda, Md. : 1985) 1989;66(3):1104-7.
1989: J M Kowalchuk; S A Maltais; K Yamaji; Richard L Hughson
The effect of citrate loading on exercise performance, acid-base balance and metabolism.
European journal of applied physiology and occupational physiology 1989;58(8):858-64.
1989: C J Orok; Richard L Hughson; Howard J Green; J A Thomson
Blood lactate responses in incremental exercise as predictors of constant load performance.
European journal of applied physiology and occupational physiology 1989;59(4):262-7.
1989: Richard L Hughson
Ramp work tests with three different beta-blockers in normal human subjects.
European journal of applied physiology and occupational physiology 1989;58(7):710-6.
1988: Richard L Hughson
Failure of impedance plethysmography to follow exercise-induced changes in limb blood flow.
Clinical science (London, England : 1979) 1988;75(1):41-6.
1988: S E Alway; Richard L Hughson; H J Green; Aftab E Patla
Human tibialis anterior contractile responses following fatiguing exercise with and without beta-adrenoceptor blockade.
Clinical physiology (Oxford, England) 1988;8(3):215-25.
1988: F L Kaufman; D E Mills; Richard L Hughson; G T Peake
Effects of bromocriptine on sweat gland function during heat acclimatization.
Hormone research 1988;29(1):31-8.
1988: Richard L Hughson; Duane L Sherrill; G D Swanson
Kinetics of VO2 with impulse and step exercise in humans.
Journal of applied physiology (Bethesda, Md. : 1985) 1988;64(1):451-9.
1987: M D Inman; Richard L Hughson; K H Weisiger; G D Swanson
Estimate of mean tissue O2 consumption at onset of exercise in males.
Journal of applied physiology (Bethesda, Md. : 1985) 1987;63(4):1578-85.
1987: Richard L Hughson; K H Weisiger; G D Swanson
Blood lactate concentration increases as a continuous function in progressive exercise.
Journal of applied physiology (Bethesda, Md. : 1985) 1987;62(5):1975-81.
1987: S E Alway; Richard L Hughson; H J Green; Aftab E Patla; J S Frank
Contractile properties of the human triceps surae following prolonged exercise and beta-blockade.
Clinical physiology (Oxford, England) 1987;7(2):151-63.
1987: Richard L Hughson; H J Green; S E Alway; Aftab E Patla; J S Frank
The effects of beta-blockade on electrically stimulated contraction in fatigued human triceps surae muscle.
Clinical physiology (Oxford, England) 1987;7(2):133-50.
1987: S E Alway; Richard L Hughson; H J Green; Aftab E Patla; J S Frank
Twitch potentiation after fatiguing exercise in man.
European journal of applied physiology and occupational physiology 1987;56(4):461-6.
1986: M A Lundberg; Richard L Hughson; K H Weisiger; R H Jones; G D Swanson
Computerized estimation of lactate threshold.
Computers and biomedical research, an international journal 1986;19(5):481-6.